Pumping mechanism.



A. ELLSWORTH @E A. I". (I II. C. ABBOTT,

PUMPING MEGHANISM. APPLICATION FILED DE0.15,1910.'

Patented June 4, 1912.

.HvJHIWn T FF@ AUGUSTUS lnLLswoRTH, or OILCENTER, AND Aivnenosn r. ABBOTT AND ROY4 o.

' ABBOTT, or' BAKERSFIELD, CALIFORNIA.

PUMPING iMEoHANIsM.

\'Specification of Letters Patent. i

Patented June 4t, 1912.

Atplicatipn sied December 1'5, 1910. serial No. 597,436.

Bnosn F. ABBOTT and ROY C. ABBOTT, resid` ing at Bakersfield, county of Kern, State of California, citizensof the United States, have invented" new 'and useful Improvements in Pumping Mechanisms, of which the following is a specification.

This invention relates to a device for pumping or flowing oil or other liquids out of the well; and it refers particularly to a device for accumulating gas pressure suilicient for forcing the liquid to the surface.

We are aware that certainV devices have heretofore been designed for the purpose of raising oil through a small height by gasv pressure, and especially for aiding theV ordif'` nary pumping. apparatus .in raising the `oil.L

20 But no attempt hasbeen made to accumulate the gas pressure so that it would force the oil lto any great elevation. In a large majority of oil wells the gas pressure is comparatively low, in aigreat number of cases being less than ten pounds per square inch. 4There are some wells inwhich the gas pressure is sufficient to blow the oil and piping out of the hole, but these vwells are ordinarily uncontrollable. 3'@ It is the Object of our invention to provide a deviceor mechanism which will accumulate the gas pressure -in an ordinaryv well sufficiently to raise the oil to the surface in large .l quantities. With `our deviceY we have been able to pump wells up-to a depth oftwo thousand feet where before the accumulation/of the gas, the, pressure was normally insufficient to raise a column of oil to that height or to move an lordinary steam gage. Thus our invention is seen to radically differ from those inventions which merely utilize the normal as pressurefor raising the Oil a few feet. nd'another fea ture ofdiiference is this, that in the old mechanisms the movement of the Oilby'gas l pressure was ordinarily intermittent, while in our-device the oil flows evenly and continuously until either the oil or gas has been exhausted from the well.

'is continued. Our device will pump more The'utility of ourinvention will be oboil from a well than is ordinarily possible with a reciprocating pump, as the pump makes an intermittent flow while the new device makes a continuous flow; and our device will do this without careful attention.

In the accompanying drawings Figure 1 isa sectional view showing our device applied to a well. Fig. 2 is a cross section taken on line 2 2 of Fig. 1.

' In the drawings 6 designates the casing of a well in which oil or other liquid. has risen to any point below the upper end of the casing and is required to' be removed therefrom. A head 7 is provided for the upper end of the casing so that no gas shall escape except as is especially provided for. A 'nipple 8 leads upwardly from head T and connects with a T-fitting 9 to which a valve 10 is connected. Valve 10 is for` the purpose of relieving the gas pressure in the upper` part of the casing when the gas pres sure accumulates more than is desirable or safe. A gage 11 may be used for indicating the pressure, or a safety valve may be substituted for the gage and hand valve so that the pressure maybe 'automatically relieved when 1t reaches a certain point above that 'required' for pumping 'the well. A lead pipe 12 passes upwardly through the well and through nipple 8 and T-fitting 9 and is connected to a T-fitting 13 on its upper end,

from whence pipeJ 14: V,passes for leading off the oil which is pumped from the well, a valve 15 controlling the flow of oil. At the top ofl T-fitting 13 a plug 16 is inserted, being removable so that a rod or other long article may be passed down 'pipe 12 to re'- move any sand 4or other foreign matter which might clog the pipe. At the lower end of pipe 12 an inverted cone shaped foot piece 20 is attached. Foot piece 20 ispreferably made of Vthin metal and its lower edge is either of such diameter as to leave an an nular space between it andthe casing, or preferably it touches the casing andis proplacement of the foot piece will insurebetter Vvided with perforations 21 which extendoperation. The gas from the oil and other sources, passing up through t-he oil passes up the sides of the casing and through aper' tures 21 into the space illustrated. Here the pressure accumulates (the time usually taken being a few hours) and presses down on the oil surface with suiiicient force to ered -as the oil level falls if the oil is pumped from the well faster than it flows in. It. will be understood, however, that when the pump is started with the foot piece in the oil, the upwardlyilowinostream will serve to continuously raise the o1l until, when the stream ceases, the normal level. of the oil will fall as much as two hundred feet below the foot piece.

Sometimes an agitation of the oil and gas is needed to cause them to flow, in which case the foot-piece maybe moved up and down through the oil and the oil and gasV agitated, causing a renewal of the iow.

F rom the foregoing it will be seen that qur invention is not limited to the specific form described, but 'only to such equivalent results. The configuration of the foot piece may be varied and the connections at the top v of the well may also be changed.

Having described'our invention, we claim:

1. In an oil pumping mechanism for wells the combination ofan outer casing, a cap member or cover threaded to said casing, a centrally disposed vent device'for ynatural gas attached to saidcap member or cover, a lead pipe of relative small diameter pass'- ing through said vent device and into said casing down to andr within the oil in the well, a Haring cone-shaped mouth atthe lower end of said lead pipe, said flaring mouth portion touching or nearly, touching the aforesaid casing and serrations or gas .passages around the lower end of said flaring onA cone-shaped mouthpiece. l

2. In an oil pumping mechanism for wells,

. the combination of an outer casing, means on said outer casing to accumulate Within said casing the natural gas arising from the oil in the well, means to register the pressure and means to regulate the amount of saidA accumulation of natural gas attached to said outer casing, a centrally disposed lead pipe passing within'said casing down to and within the oil in the well, an enlarging mouthpiece to said lead pipe touching `larged mouthpiece, saidserrations extending above and below the port-ion ofthe enlarged mouthpiece which touches the outer casing, and' said sei-'rations allowing the passage of theV natural gas arising out of the oil in said well to said accumulating chamber.

3. In a device of the character described, the combination with a well casing,'of a discharge pipe and a gas collecting device mounted upon the lower end of said discharge pipe of substantially conical form, the small end of said collecting device being connected to said discharge pipe, said collecting device beinoformed to permit upward. passage of Iluid between its lower edgey andthe well casing.

4. In a device of the character described,

discharge pipe, a gas collecting device mounted upon the lower end of said discharge pipe of substantially conical form, the small end of said collectingdevice being connected to said discharge pipe, and the large end of said collecting device being of substantially equal diameter with the interior of the well casing and being formed to permit the upward passage ofiluid between itself andt-he well casing.

5. In a device of the character described, the combination with a well casing,l of a dis. charge' pipe, and a Vgas collecting device mounted upon the lowerend of said disthe combination with a well casing, of a charge pipe of substantially conical form,

the small end of said collecting device being connected to said discharge pipe and the large end of .said collecting device being of substantially equal diameter with the .interior of the said well casing, the lower end ofsaid collecting device being disposedwitliin a body of liquid Within theujvellcasing and being formed to perinit'the upward passage' of some of said liquid past saidv collecting device.

In witness that wel claim have hereunto subscribed our names this 16th day of November, 1910.

AUGUSTUS ELLswonTH. AAMBROSE F.- ABBOTT. y ROY C. ABBOTT. VVit'nesses: i

CHARLES A. SEAMON,

COLUMBUS F. AMOORE, L. W. SHARP.

the foregoing we Y 

